Kinda necro post: I've been using Bioval .25's in a stock MP7 for about a year now, and so far it's been giving astounding results. Lately it seems to be shooting harder and the hop up seems to be more intense, so maybe I'll go ahead and start running .30 Biovals and see how that goes. During my game today I was gettin about 330 fps with 25's in 45 degree weather at about 4000ft elevation, still pulling off about 200+ft range over hopped.I suppose my question is "why would you want it to shoot harder?" aside from just for shits and giggles, I think getting a solid 400 fps is plenty.

Kinda necro post: I've been using Bioval .25's in a stock MP7 for about a year now, and so far it's been giving astounding results. Lately it seems to be shooting harder and the hop up seems to be more intense, so maybe I'll go ahead and start running .30 Biovals and see how that goes. During my game today I was gettin about 330 fps with 25's in 45 degree weather at about 4000ft elevation, still pulling off about 200+ft range over hopped.I suppose my question is "why would you want it to shoot harder?" aside from just for shits and giggles, I think getting a solid 400 fps is plenty.